import Vue from 'vue'
import VueRouter from 'vue-router'

// 懒加载
// import Login from '../components/Login.vue'
const Login = () =>
  import(/* webpackChunkName: "login_home_welcome" */ '../components/Login.vue')
const Home = () =>
  import(/* webpackChunkName: "login_home_welcome" */ '../components/Home.vue')
const Welcome = () =>
  import(
    /* webpackChunkName: "login_home_welcome" */ '../components/Welcome.vue'
  )

const Users = () =>
  import(
    /* webpackChunkName: "users_roghts_roles" */ '../components/user/Users.vue'
  )
const Rights = () =>
  import(
    /* webpackChunkName: "users_roghts_roles" */ '../components/power/Rights.vue'
  )
const Roles = () =>
  import(
    /* webpackChunkName: "users_roghts_roles" */ '../components/power/Roles.vue'
  )

const Cate = () =>
  import(/* webpackChunkName: "cate_params" */ '../components/goods/Cate.vue')
const Params = () =>
  import(/* webpackChunkName: "cate_params" */ '../components/goods/Params.vue')

const List = () =>
  import(/* webpackChunkName: "list_add" */ '../components/goods/List.vue')
const Add = () =>
  import(/* webpackChunkName: "list_add" */ '../components/goods/Add.vue')

const Order = () =>
  import(/* webpackChunkName: "order_report" */ '../components/order/Order.vue')
const Report = () =>
  import(
    /* webpackChunkName: "order_report" */ '../components/report/Report.vue'
  )

Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    redirect: '/Login',
  },
  {
    path: '/login',
    component: Login,
  },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      { path: '/welcome', component: Welcome },
      { path: '/users', component: Users },
      { path: '/rights', component: Rights },
      { path: '/roles', component: Roles },
      { path: '/categories', component: Cate },
      { path: '/params', component: Params },
      { path: '/goods', component: List },
      { path: '/goods/add', component: Add },
      { path: '/orders', component: Order },
      { path: '/reports', component: Report },
    ],
  },
]

const router = new VueRouter({
  routes,
})

//挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to将要访问的路径
  // from 代表从哪个路径跳转而来
  // next是一个函数，表示放行
  //next()放行next  ('/login')强制跳转
  if (to.path === '/login') return next()
  //获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
